Back Door Courtesy Switch Circuit

LIGHTING (INT): LIGHTING SYSTEM: Back Door Courtesy Switch Circuit
- Back Door Courtesy Switch Circuit

DESCRIPTION

The main body ECU receives a door open/closed signal from each door courtesy light switch.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (DOOR COURTESY LIGHT SWITCH)

(a) Using the Techstream, read the Data List Interior Lighting System.

Main Body





OK:

The display is as specified in the normal condition column.

Result





B -- INSPECT BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY

C -- INSPECT BACK WINDOW LOCK ASSEMBLY (GLASS HATCH COURTESY LIGHT SWITCH)

A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Interior Lighting System

2. INSPECT BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY

(a) Remove the back door courtesy light switch Removal.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY)

(a) Disconnect the G47 main body ECU connector.

(b) Disconnect the R11 back door courtesy light switch connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal

4. INSPECT BACK WINDOW LOCK ASSEMBLY (GLASS HATCH COURTESY LIGHT SWITCH)

(a) Remove the back window lock Removal.





Text in Illustration





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE BACK WINDOW LOCK ASSEMBLY Removal
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK WINDOW LOCK ASSEMBLY AND BODY GROUND)

(a) Disconnect the G47 main body ECU connector.

(b) Disconnect the X4 back window lock connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal